Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra
At high latitudes, winter warming facilitates vegetation expansion into barren frost-affected soils. The interplay of changes in winter climate and plant presence may alter soil functioning via effects on decomposers. Responses of decomposer soil fauna and microorganisms to such changes likely diffe...
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Umeå universitet, Institutionen för ekologi, miljö och geovetenskap
2019
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165768 https://doi.org/10.1016/j.soilbio.2019.107569 |
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ftumeauniv:oai:DiVA.org:umu-165768 2023-10-09T21:49:28+02:00 Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra Krab, Eveline J Monteux, Sylvain Weedon, James T. Dorrepaal, Ellen 2019 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165768 https://doi.org/10.1016/j.soilbio.2019.107569 eng eng Umeå universitet, Institutionen för ekologi, miljö och geovetenskap Soil Biology and Biochemistry, 0038-0717, 2019, 138, http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165768 doi:10.1016/j.soilbio.2019.107569 ISI:000495519900007 Scopus 2-s2.0-85071614319 info:eu-repo/semantics/openAccess Arctic Global warming Microbes Snow Shrub encroachment Soil fauna Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2019 ftumeauniv https://doi.org/10.1016/j.soilbio.2019.107569 2023-09-22T13:57:56Z At high latitudes, winter warming facilitates vegetation expansion into barren frost-affected soils. The interplay of changes in winter climate and plant presence may alter soil functioning via effects on decomposers. Responses of decomposer soil fauna and microorganisms to such changes likely differ from each other, since their life histories, dispersal mechanisms and microhabitats vary greatly. We investigated the relative impacts of short-term winter warming and increases in plant cover on bacteria and collembola community composition in cryoturbated, non-sorted circle tundra. By covering non-sorted circles with insulating gardening fibre cloth (fleeces) or using stone walls accumulating snow, we imposed two climate-change scenarios: snow accumulation increased autumn-to-late winter soil temperatures (−1 cm) by 1.4 °C, while fleeces warmed soils during that period by 1 °C and increased spring temperatures by 1.1 °C. Summer bacteria and collembola communities were sampled from within-circle locations differing in vegetation abundance and soil properties. Two years of winter warming had no effects on either decomposer community. Instead, their community compositions were strongly determined by sampling location: communities in barren circle centres were distinct from those in vegetated outer rims, while communities in sparsely vegetated patches of circle centres were intermediate. Diversity patterns indicate that collembola communities are tightly linked to plant presence while bacteria communities correlated with soil properties. Our results thus suggest that direct effects of short-term winter warming are likely to be minimal, but that vegetation encroachment on barren cryoturbated ground will affect decomposer community composition substantially. At decadal timescales, collembola community changes may follow relatively fast after warming-driven plant establishment into barren areas, whereas bacteria communities may take longer to respond. If shifts in decomposer community composition are indicative for ... Article in Journal/Newspaper Arctic Climate change Global warming Tundra Umeå University: Publications (DiVA) Arctic Soil Biology and Biochemistry 138 107569 |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
Arctic Global warming Microbes Snow Shrub encroachment Soil fauna Ecology Ekologi |
spellingShingle |
Arctic Global warming Microbes Snow Shrub encroachment Soil fauna Ecology Ekologi Krab, Eveline J Monteux, Sylvain Weedon, James T. Dorrepaal, Ellen Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
topic_facet |
Arctic Global warming Microbes Snow Shrub encroachment Soil fauna Ecology Ekologi |
description |
At high latitudes, winter warming facilitates vegetation expansion into barren frost-affected soils. The interplay of changes in winter climate and plant presence may alter soil functioning via effects on decomposers. Responses of decomposer soil fauna and microorganisms to such changes likely differ from each other, since their life histories, dispersal mechanisms and microhabitats vary greatly. We investigated the relative impacts of short-term winter warming and increases in plant cover on bacteria and collembola community composition in cryoturbated, non-sorted circle tundra. By covering non-sorted circles with insulating gardening fibre cloth (fleeces) or using stone walls accumulating snow, we imposed two climate-change scenarios: snow accumulation increased autumn-to-late winter soil temperatures (−1 cm) by 1.4 °C, while fleeces warmed soils during that period by 1 °C and increased spring temperatures by 1.1 °C. Summer bacteria and collembola communities were sampled from within-circle locations differing in vegetation abundance and soil properties. Two years of winter warming had no effects on either decomposer community. Instead, their community compositions were strongly determined by sampling location: communities in barren circle centres were distinct from those in vegetated outer rims, while communities in sparsely vegetated patches of circle centres were intermediate. Diversity patterns indicate that collembola communities are tightly linked to plant presence while bacteria communities correlated with soil properties. Our results thus suggest that direct effects of short-term winter warming are likely to be minimal, but that vegetation encroachment on barren cryoturbated ground will affect decomposer community composition substantially. At decadal timescales, collembola community changes may follow relatively fast after warming-driven plant establishment into barren areas, whereas bacteria communities may take longer to respond. If shifts in decomposer community composition are indicative for ... |
format |
Article in Journal/Newspaper |
author |
Krab, Eveline J Monteux, Sylvain Weedon, James T. Dorrepaal, Ellen |
author_facet |
Krab, Eveline J Monteux, Sylvain Weedon, James T. Dorrepaal, Ellen |
author_sort |
Krab, Eveline J |
title |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_short |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_full |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_fullStr |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_full_unstemmed |
Plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
title_sort |
plant expansion drives bacteria and collembola communities under winter climate change in frost-affected tundra |
publisher |
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap |
publishDate |
2019 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165768 https://doi.org/10.1016/j.soilbio.2019.107569 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Global warming Tundra |
genre_facet |
Arctic Climate change Global warming Tundra |
op_relation |
Soil Biology and Biochemistry, 0038-0717, 2019, 138, http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-165768 doi:10.1016/j.soilbio.2019.107569 ISI:000495519900007 Scopus 2-s2.0-85071614319 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.soilbio.2019.107569 |
container_title |
Soil Biology and Biochemistry |
container_volume |
138 |
container_start_page |
107569 |
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1779312484697505792 |